Disk-rolling machine



June 26, 1923. I459,767

' H.- Y. HILDEBRAND DISK ROLLING MACHINE Original Filed May 3, 1920 ffy.f.

960. 5g/dw Marne f Patented lune 26 1923@ whlt?? UNITED STATE PATENT@FFEC HENRY Y. HInnEBaAND; or JoHNsrown, PENNSYLVANIA, AssIGNon, nrMnslau AssIaNMnNa's, To BETHLEHEH STEEL raonucfrs COMPANY, AconPoaA'rIoN or PnunsrimasuutA Applaauonl med :my a, 1920, serial No.378,631.

To vall whom it may concern.'

Be it known that I, HENRY Y. HILDEBRAND, a citizen of the United States,residing in the city of Johnstown, in the county of Cambria and State ofPennsylvania, have invented certain new and useful Improvements inDisk-Rolling Machines; and I do hereby declare the following to be afull. clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This application is supplementary to my co-pending application tiledSeptember 30, 1919, Serial No. 327,509.

My invention relates rolling suitable blanks into substantially circulardisks which have a relatively thick central portion tapering thence to athinner periphery. These disks are adapted for use in variousconstructions and particularly for automobile and other vehicle wheels.

The object of a disk rolling able blanks into substantially circulardisks, of tapered or reduced form, which are adapted to the usesoutlined. Tapered disks have heretofore been made by slow and expensivemachine turning, but disks so made do not possess the requisitestrength, whereas disks to a machine for formed in my disk rollingmachine showar greater strength for equivalent sizes and dimenslons.

My invention comprises apparatus which firmly clamps and holds thecentral portion of a blank or disk and permits free rotation of theblank or disk as the outer' portion thereof is inserted between a pairof overhang rolls, which are tapered or otherwise shaped to conform tothe desired crosssection of the disk. The clamping means may be moved toor from the rolls in the general direction of the roll axes so that theblank or disk or portions thereof are grasped by the rolls, when theyare rotatlng, tov thin, taper or otherwise shape the blank or disk andsimultaneously to increase the diameter thereof to the re uired degree.yThe clamping means may a so be adjusted transversely ofthe rolls so thatthe axis of rotation of the blank or disk can 'be moved to or from therolls in the plane my invention is to providey machine that will rollsuit' DISK-RQLLING MACHINE. I

Renewed August 8, 1922. Serial No. fktil able thickness and diameter andare preferably circular disks, although they may be of other shapes, ifdesired.

aving thus given a general description of my invention, I will now, inorder to make the mattermore clear, refer to the annexed sheet ofdrawings in which like characters refer to like parts Figure 1 is a sideelevation of my improved disk rolling machine; Figure 2 is a detail, invertical sectional elevation, of the fluid-pressure operated clampingjaws for holding the blank or disk while it is being` rolled; Figure 3is an end elevation of my disk rolling machine.; Figure 4 is a verticallongitudinal sectional elevation of thev carriage support and carriageillustrating the attachment of the piston rod and longitudinal boltthereto; and Figure 5 is a top plan view of the disk holding mechanism.1

Referring now to the characters of reference on the drawings :-1 is thebase of the machine on which the various parts 'are mounted and 2indicates the rolling mill in general, the rolls 3 and 4 of which are`rame 5 and is provided with a Flange 8 The notch 9 en-Y preferablysquare shank of the which contains a notch 9. gages the longitudinalbolt 10 which passes through a hole 13 in the Flange 12 of theguide-frame 5 and carries the nut 11. The limit of the forward travel ofthe carriage 7 may therefore be varied by changing the position of thenut 11 on the bolt 10.

The adjustable frame 24 .is mountedV upon the carriage 7 and is securedthereto by the bolts 23, the'heads of which set in slots 22 in thecarriage 7. Set screws 21 in the flanges 2O of the carriage 7 providemeans for moving the adjustable frame' 24 and the parts mounted thereontransversely of the roll axes. A journal bearing 30, secured to theadjustable frame 24, carries the lower rotatable clamping jaw 28 whichis suplied with cooling fluid through the pipe 31.

he lower clamping jaw 28 is provided with a face-plate 29 in which issecured the centering pin 41. The centering pin 41 engages a centralhole in the disk or blank 40 and projects therefrom into the recess 42inthe face-plate 27 of the upper clamping jaw 26.

The top frame 25 is rigidly mounted upon the adjustable frame 24 andcarries a movable Huid-pressure operated and fluid-cooled rotatableclamping jaw 26 to which is secured a face-plate 27. This upperrotatable clamping jaw 26 is supplied with coolinr iuid through the pipe33. n order that the upper rotatable clamping jaw 26 may be moved to andfrom the lower rotatable clamping jaw, so as to grip or release a blankor disk placed between the jaws, it is carried in a sliding journalbearing 32 mounted on the top frame 25. The longitudinal movement of theupper rotatable clamping .jaw 26 is accomplished by Huid-pressure in thecylinder 34 which is provi ed with a piston on the piston rod 35.

he piston rod 35 is secured to the crosshead 36 which is attached to thesliding journal bearing 32. Fluid under suitable pressure -is suppliedto the cylinder 34 through'the pipe 37. It is therefore evident that a'blank or disk 40 centered on the pin 41 of the lower rotatableclampingjaw may be securely held or gripped by supplying fluid undersuitable pressure to the cylinder 34 and simultaneously therewith theblank or disk may be rotated.

In order that the blank or disk may be moved to and from the rolls 3 and4, a iuidpressure advancing and retracting means is provided. Thiscomprises a cylinder 38 which is mounted on the overhanging portion 6 ofthe. guide-frame 5 and is supplied with fluid under suitable pressurethrough the pipes 39, thereby actuating a piston on the piston rod 15.The piston rod 15 of the cylinder 38 has a reduced end 17 which passesthrough the hole 16 in the carriage 7 and is secured thereto within thetransverse inder 34.

tral hole, is placed opening 18 by the key 19. v

Y The o eration of my apparatus is as follows z-l luid under suitablepressure is admitted to the as toy retract sufiiciently'clear of therolls to admit therequired blank between 'theclamping jaws, and the up rclamping aw is retracted b the upwar movement oy ythe piston in cy Theblank which is preferably red or white hot and provided with a cenon'thelower clampingY jaw face-plate 29 with the central hole fit' front endof the cylinder 38 soA the disk holding mechanismv ting over thecentering-pin 41. The piston of the fluid-pressure cylinder 34 islthenforcibly advanced thereby causing the faceplates `27 and 29 of theclamping jaws'to firmly grip and hold the blank. .Fluid under pressureis now of cylinder 38 thereby advancing the. disk holding mechanism. Inthis way admitted to the rear end is presented to the bite of therotating rolls 3 and 4, the advancement being so regulated as togradually feed the blank into the rolls' and produce the form of diskillustrated 'or any other apparatus.

A reversal of these-operations will l.wi-th(- forms which may be madebythis` draw the disk in-its iinished vform and. prepare the apparatusfor another blank where' upon the operation proceeds as before.

Although the blanks or rolled when the roll of rotation of the blank ,ordisk, I prefer to arrange my apparatus so that the axesV of the rollsare slightly removed from the axis of rotation of the blank or disk asthe rolling action will then tend to knead or pull the material towardthe periphery of the blank or disk and further tend to increaseitsdidisks may be axes intersect the axis,-

`ameter, as is necessary when it is being rolled f to tapered or reducedform. To this end the transverse movement of the adjustable frame 24 bythe set screws 21 is provided.

AlthoughI have describedand illustrated I' my invention 1n considerabledetail, I do not wish to be limited to the exact and specific detailsthereof as shown and described, but may use such modifications in, for,or equivalents thereof, as

pointed out in the claims.

Having thus described my invention, what I claim and desire to secureby'Letters Patent is 1. A disk rolling machine comprising avsubstitutions are embraced r` within the scope of my invention, vor as"uisa carriage slidably mounted upon said guide-frame, uid-pressureoperated means adapted to reciprocate said carriage on said guide-frame,a superstructure mounted upon said carriage and adjustable transverselythereof, a pair of Huid cooled, rotatable clamping jaws mounted on saidsuperstructure, and a Huid-pressure advancing, retracting and holdingmeans for one of said clamping jaws.

2. In a disk rolling machine, the combina,-

`tion of a pair of overhung'rolls, a 'superstructure mounted on acarriage and trans.

a pau of'uid versely adjustable thereof, coled rotatable clampin jawsmounted Von said su rstructure, ui, -pressure `o rated means oradvancing,re tracting an holding one of said jaws, a guide-framesupporting said carriage, the guides of which frame inname? aresubstantially parallel to the roll axes, and a Huid-pressure operatedmeans for advancing andlretracting said carriage.

3. lin a disk rolling machine, a pair of overhung rolls, means forrotating the same, a base. a guide frame mounted longitudinally thereon,the guides of which extend longitudinally thereof in the generaldirection of the roll axes, a carriage slidably mounted on saidguide-frame, fluid-pressure operated means for advancing and retractingsaid carriage, a superstructure mounted upon said carriage, means foradjusting sald su` pel-structure transversely of said carria pair ofopposed rotatable clampin )aWs mounted on said superstructure am?ffluidpressure operated means adapted to advance, retract and hold one ofsaid clamping jaws.

ln Witness whereof l hereunto aihx my signature.

HENRY Y. HLTLDEBRAND.

